Right now I have two 8" Infinity kappa subs in my car but I'm thinking of adding my 10" Infinity also. I will probably use the two 8's more for mid bass crossed over at 125 Hz and the 10" at 50 or 80 Hz. Is this a good idea? or will mixing the different sizes sound like $hit? I want some opinions before I do it because I plan to build a stealth box for the 10 and dont want to go thru the time and hassle of building a box to have it sound like @$$! Thanks!

 

there was a big discussion about different size subs in a car not too long ago... there were mixed opinons and I have never heard different sized subs in one car, so I don't have an opinion...

check this link
https://www.thirdgen.org/techbb2/sho...hreadid=108687

 

well being a big stereo guy, lol, I can tell u that it won't sound good unless you move your 8's toward the front or the 10. the subs will be taking in differet amounts of air and putting out different amounts. The different sounds made by each sub won't be heard clearly because the mid bass of the 8 will get somewhat drowned by the 10 punchy bass. you will hear it but it will be a jumlbled mess. I have heard many different combos in cars, and installed a few, and the best way to do it is to have the subs in sepearte areas so they can be heard clearly. best bet would be to make a fiberglass enclosure on the door panels to hold the 8's

 

I've played around with using 8s as midbass drivers, and I didn't have the best results. But... I couldn't afford to do it the right way at the time. I had a passive crossover on them and ran them off the same amp that powered my coax speakers. If you use an active crossover and run a dedicated amp to them, and you spend time adjusting the crossover to find the "sweet spot", then you can get good results. Is all the effort worth it? Not really. Your 10" can easily play cleanly right up to 125hz, so having the 8s there is pretty pointless. If it were me, I'd sell them to recoup some of the costs of getting the new 10". Maybe put that money toward another 10" down the road, or upgrading the front speakers.

 

I agree. I would get a different 10" sub, and if the passive or electronic crossover works well enough, as well as a good set of midbass 6.5", there's no need for the 8's. Use the 10" to cover 100hz and lower and use a good set of midbass 6.5" to cover the front.

 

I used to have 2 8" and a 12" in the back of mine. It was quite the headache to get to sound right and quite frankly never really did. I'd follow the above advice. Hell I think my setup sounds much better with just the single 12" I have now then when I ran the 3 of them.

 

why dont u put in four 8" subs that would look cool and i bet it would sound awsome as well